YaND 3 - Telenet Service
Contents
1. S 9 PY Tote ON SI RS ue ptt at ui ias 9 DO OOS EEUU 10 ls aun mua o aw i LU a w mamita awa CIA ned M DU LIN ES 11 RECEDHON ROPDO A 12 RECEDHON Salada a 13 DF Ata Inteco am Z a ta utet sim O LN 14 r pliemerisruz suu us e 15 ODHONS EOP rE reMC E uuu uu uuu upa si uuu ea santa rer belit ute cna akaun 16 Personal Segue HE INO sedantes 17 Station keyword database Import Export eene eene 17 SVSEGITI EOB oeste cid A e cn aaa ad 18 Station Identification how does it WOFK cccccssscccessececeseeccesececeeececeuseceeeaecesauecessueeesseneeeaues 18 Using the KeyWord List Edo uuu u pe aquo REX ada 21 USING the Keywordikist EBdileluu u uuu ova 21 VaN DW Ore AUtOCOFTeCHOFo s sona 22 RUAHINE multiple instances Of YaND counts 23 TRES Mak O Tiria nea eE E E A E ion 24 Bem 24 YaND 6X manual EN odt Page 2 of 24 Introduction Yand Yet Another Navtex Decoder is as you guessed a Navtex decoder Navtex stands for NAVigational TEleX and is part of the worldwide Global Maritime Distress Safety System or GMDSS See http en wikipedia org wiki Global Maritime Distress Safety System for an introductory explanation Navtex messages are periodically transmitted on fixed frequencies by coastal stations all over the world Each station is assigned a fixed 10 minute period every 4 hours but off schedule urgent messages can be transmitted at any time Worldwide frequencies used by2. 4U Fundy NB CAN 292 SCHEDULE 518KHz 15 20UTC 1U Talinn EST 46 3U Mondolfo ITA 138 4U Fundy NB CAN 292 YaND 6X_manual_EN odt Page 23 of 24 The Making of File Edit Search View Project Run Component Database Tools Window Help na 88s amp e Sala 1137 w dlgs Standard Additional n Sustem Data Access Data Controls dbExoress DataSnao AGFA Internet BDE ADU Inte wing2 D gas daa EE ES o nis wes E EHE El aN lU Main CodeT ables MesLItiD4 DataModule UCommon uModem mg Published a Ser Types Waveln OnError WavelnError E PAGE TripleAray HE TRGBTriple amp rmay AddB5ysLog AUDIO settings PCM IntToStr SampRate Hz 16bit E TStationld IntToStr NR OF SAMPLES samples block 0 dE TStationL ist EB Variables Constante if Waveln SetupInput AudioDevindex V SAMPLE FREQ then BITS PER CHAR begin CShitt AddSysLog AUDIO format supported starting input 9 DARK GREEN Wavein StartInput Y D gt end Lu FEC PERIOD else S5howMessage CAHNOT OPEN AUDIO DEVICE SEE SYSTEMLOG FOR DETAILS a frmiM air 0g F SCAN INCR B F SCAN START fill up combo box headers with list of defined navareas 9 LangCheck cbNav Items Add yu LastM cbHav Itemzs Add UNID 0 MasPixelCount I for i Low DEFINED NAVAREAS to High DEFINED NAVAREAS do Cj PeakLim 1 begin Cy WERCHECKSTRING
3. YaND 6 x USER MANUAL o YaND 6 3 Yet Another Navtex Decoder FA i SETTINGS CPU LOAD 1 6 1 1 5 1 UTC PONE AUDIO INPUT i Uos FREQUENCY KHz SIGNAL POLARITY 518 Normal USB 490 t Inverted LSB 05 27 NOW RECEIVING ESTUARY LONG SAND HEAD CHART BA 2692 BLACK DEEP LIGHT BUOY MOVE 1350Hz ha u ui if Z CZC VA24 121305 UIC MAY NAVAREA 1 113 ENGLAND EAST COAST THAMES ESTUARY LONG SAND HEAD CHART BA 2692 BLACK DEEP LIGHT BUOY 2013 03 2 2013 03 2 2013 03 23 2013 03 2013 03 32 2013 03 Fa Fa ch tu pa LO e 6 a R3 R F om n H in i i5 nf L A to c 6 6 oo n ib i wu R3 ay LO SCHEDULE 518KHz 16 10UTC 3B Alger ALG 184 4B Bermuda Harbour BER 2 7 7 9B Bahrein BHR 108 19B Bodo NOR 132 Manual v1 2 April 2013 Table of Contents o 6 uuu u uu M 3 RESEN ELE una aus usu hak e T 3 oie g OR ad g oA EET 4 Optimalsettines tor Perseus Users sosa 4 Audio Input SelectiOk aa 4 WIN2K WINXP VISTA WIN7 WIN8 audio issues oocccconcccconoccconncnnnonccononanononacinnonanononaninoninos 5 SG I ss Ne u smua una ama apa kaa eck swat teem mauka kipata ast yana DOM CERE 6 Man Panels ZZ UT a 6 Speclr nma Mer p 7 LOD ZR u SSS eman u pe ce eh nico aus Sau o ssh Su Qusa 7 RAW TexbSedgrehlosa saneta on Oe nee ok Pe ea ene on aaa saa 8 Navtex Schedule ywx A AA IAEA AA sayaq qapaq iwa wa ala hd 8 SNR HISO y u c
4. 56 117 00225202 gt 32 DEG 49 12 817 N 055 DEG 00 55 617 00 25 10 2 DEG 48 44 241 N 035 DEG 01 03 974 00 25 11 ISR AUTH 00 25 11 NNNN E Pd PJ Eu If the identification by GUI fails and a correct ZCZC sequence with ID letter is present Yand will stop on the first matching geographical identifier it finds no matter what other identifiers may be present in the rest of the message Consequently the message below will logged as coming from 02D Coruna ESP Note that a correct header must look like ZCZC lt space gt lt A Z gt 20 30 14 ZCZAZC DEOS 20 50 19 08 1707 UTC JAN 10 20 30 21 WEATHER BULLETIN 20 30 21 20250222 NR 202302235 ROUTINE zZUSOUIS 20 30 28 SPANISH METEOROLOGICAL AGENCY 20 30 28 r Ax 20 31 14 ZCZ DA17 lt incomplete header 20 31 16 gt FAROE ISLANDS 20 31 20 gt 051700 UTC JAN 10 20 31 23 gt NAV WNG NR 01 20 31 26 gt UPDATE YaND 6X_manual_EN odt Page 20 of 24 Using the Keyword List Editor Yand comes with a fairly extensive database of keywords European stations are perfectly covered as this is my home continent USCG are reasonably documented but far from perfect Asia is the least documented You can however add your own keywords in order to yword List Editor STATION LIST Keyword Type i Show Geographical Keywords GID C Show Unique Keywords UID 490 3W ICI Sellia Marina ITA 490 3X UTT Odesa UKR 518 3X EAV Valencia ESP 518 4
5. 0430 NIL NNNN YaND 6X_manual_EN odt Page 19 of 24 Is Yand s station identification feature infallable No It may fail when intermixed fragments from different stations were received as happens often in Europe where certain Navtex timeslots are shared between stations in 3 or more navarea s As explained earlier precedence is given to identification by globally unique identifiers GUI If this attempt succeeds the identification process stops no matter what other geographical identifiers may be present in the message In the example below a message from S03B Alger is in the middle of transmission interrupted by S03P Haifa Yand logged the message as 03P because of the GUI ISR AUTH it found 00 10 50 ZCZC BESS O02102 5352 17 09 12 52 LT 00 11 01 gt WEATHER FORECAST FOR SHIPPING ISSUED BY METEO ALGIERS 00 11 03 gt GALE WARNING NIL 00 11 12 gt GENERAL STATE AND EVOLUTION MEAN PRESSURE OVER THE BASIN 00 11 18 gt FORECAST FOR TOMORROW SEPTEMBER 18 2001 00 11 20 gt ALBORAN 00 13 02 LVIS 2 IL 00 24 03 PC CD EB TZIZ U UXW 00 24 13 Pannan A QTIT ISRAELI CHART 3 5 00 24 20 A NEW BERTH IS BEINGVCONSTRUCTED IN THE 0 T 00 24 26 gt O IFA IN THE FOLLOWING POSITIOI 00 24 32 gt 32 S amp 48 0 538 N 035 DEG OO 41 3972 E 00 24 39 gt RW DEG 48 52 058 N 035 DEG 00 50 8555 E 00 24 48 32 DG 49 14 501 N 035 DEG 90 46 625 00 24 54 gt 52 DEG 49 15 770 N 035 DEG 00
6. Navtex are 518 KHz transmissions in English 490 KHz transmissions in the local language 424 KHz Only used by Japanese stations What do you need for Navtex reception An SSB Single Side Band communications receiver capable of receiving on 518 and 490 KHz Any antenna will do for receiving of local stations but for DX reception a decent outside antenna will be needed A mini whip 4 6 m is great for Navtex An audio cable connecting your receiver output to the soundcard input of your PC Connecting the receiver to the PC Since YaND captures the audiosignal in mono mode almost every audio cable should be suitable to connect the receiver output to your soundcard It is advisable but this has nothing to do with the working of YaND to provide a 1 1 isolation transformer in between receiver and soundcard to avoid ground loops the line transformer of an old analog modem is ideal Installation This is a very straightforward process that will take only a few seconds Simply doubleclick Yandsetup6_X exe and follow the instructions By default Yand will be installed in Program Files x86 YAND and a shortcut will be placed on your desktop Note to Vista Win7 Win8 users If you are not using Yand as an administrator Yand will not work correctly it cannot write to its database it cannot update its ini file etc thanks to Microsoft s absurd concept of Virtual Store The solution is to install Yand in
7. all UoS Unshift on Space A RTTY era leftover If checked letters shift will be forced each time a space character was received It may enhance readibility of weak signals but don t expect miracles Autotuning when checked AutoTuning YaND will automatically determine the optimal tuning and will also track eventual receiver drift within the 250 250 Hz tuning region indicated by the blue region in the spectrum window When strong interfering signal peaks are present in the blue tuning region autotuning may run into troubles and jump on the wrong frequency This is often the case in Europe where in winter time relatively strong beacon signals are present exactly on 518 000 carrier ARD Arad Romania and JBR Yasbereny HNG In this situation it is advisable to switch off autotuning You can now manually adjust the desired setting The last used frequency is remembered by YaND irrespective of the autotuning setting Main Panel Led SYNC when constantly lit green indicates that YaND has acquired full sync on the data stream When flickering green it indicates that a sync signal is being received This special sync signal is transmitted for ca 30 seconds before the actual data transmission starts Most stations also intersperse data periodically with sync characters When yellow indicates that Yand is in pre sync mode and thinks it has spotted a signal this may will occur on random noise also When red indicates that Yan
8. false or silly reconstructions the reconstruction algorithm applies the following rules Candidates for reconstruction must be at least 5 characters long and cannot be longer than 16 characters long Candidates for reconstruction cannot have more than 50 characters After applying the above rules one rare situation remains where 7 reconstruction candidates will be found BIGHT EIGHT LIGHT NIGHT RIGHT SIGHT WIGHT where IGHT was originally decoded The maritime vocabulary was compiled by scanning many thousands of navtex messages from my own logs and from Navtex websites all over the world The list is surprisingly short only 1800 unique words were found indicating that apart from geographical descriptors mostly the same jargon is consistently used in most Navtex messages YaND 6X manual EN odt Page 22 of 24 Running multiple instances of YaND As from version 6 1 it is possible to run multiple instances of YaND The only thing you need to do is to install each instance in a separate directory Simply change the install path proposed by the installer to YAND2 or whatever you prefer The installer will also put a second third shortcut on your desktop To avoid confusion it is a good idea to give the shortcuts sensible names lmlx J SETTINGS AUTOTUNING iv on Quoc T AUDIO INPUT biz POLARITY Normal USB C Inverted LSB
9. is received Log DATABASE FILTERIMG DATABASE NAVIGATION FREQUENCY ay REA y cs m Q RECORDS 64997 OTH Raw text search in message BODY Sy 518 KHz Fs PENE II Dornan A 2013 03 29 07 01 17 d 1 DDH47 Pinneberg DEU 2013 03 23 07 02 58 BETTE RN FN E RN maman DDH47 Pinneberg DEU 2013 03 29 07 03 34 sis 7ifs Ja jaa 1 DDH47Pinneberg DEU _ 2013 03 29 07 10 36 518 sofr fe s7 CELESTE En m E Mo B a 013 03 29 07 11 26 OST Ostend BEL 109 o1o32007 1200 se oor a les 1 Jos Ostend se 13 03 2907 12 52 5181 sofr js JOST Ostend BEL 013 03 29 15 30 39 s eo h RI OST Ostend BEL 2013 03 29 15 31 48 sis soya sor c is L o 2013 03 29 2013 03 25 2013 03 72 2013 03 2013 03 20123 03 2013 03 2013 03 ec e a n LO n ENDERADIO NX 157713 ASTAL ROUTE OOSTENDE DE PANNE ECIAL PURPOSE BUOY HD10 FL 55 51 U8 21H 002 36 53E zile TEMPORARILY ESTABLISHED 91 gt AUTOCANCEL 111418 UTC APR 3127 NNNN e ps 2 2 OT zik Bo zer T LO Lo i u LO in I G a un to M lt J A L E 2 2 ET YES er 2 mal YaND 6X_manual_EN odt Page 7 of 24 Clicking on any message in the message summary list will show the message body in the lower window When scrolling through the message list the lower window will automatically synchronize The message database will grow steadily when m
10. 300 characters in total for each station YaND 6X_manual_EN odt Page 21 of 24 YaND Word Autocorrection As far as know YaND is the only Navtex decoder implementing automatic word correction When YaND detects a word containing errors i e one or more characters are present it will try to reconstruct the word by scanning an internal maritime vocabulary for an almost matching word or possibly multiple words To indicate the word was reconstructed it will be enclosed in square brackets Note that autocorrection is done on the stored message not live in the message window 00 50 21 gt ZCZC FA51 O02 S03 74 gt 24 100 UTC SEP 10 00 50 29 gt COASTAL WARNING ARKHANGELSK 58 00 50 33 SOUTHERN PART WHITE S A 00 50 42 1 MISSILES LAUNCHES 303SEP THRU 04 OCT PW P DTO 1600 00 50 47 8 589 0 9 878535 8 43 00 50 53 gt 65 1 5N 036 37 0E 65 37 2N 036 26 208 00 51 00 gt 66 12 3N 037 19 0F 66 04 0N 037 47 0E 00 51 06 gt 66 03 0N 038 38 0E 66 06 5N 038 5 0E 003515145 65 10 5N 037 302 EU65 1 UN 096 49 5BE 00 51 22 gt THEN COASTAL L NU 65 12 2N E EYARUMYE U M MANCEL T 00 51 26 gt IS MESSAGE 041700 O T 00 51 27 gt NHNN 00 51 27 gt In some situations multiple matches will be found this is inevitable 04 21 26 ISLAND AND RAS D OR AAKE VN 04 21 32 gt PRINCE EDWARD INLAND ISLAND COAST GULF OF 04 21 39 gt ST LAWRENCE AND NORTHUMBERLAND STRAIT To reduce the chances for
11. 4 NMA Miami USA 518 48 ZBM Bermuda Harbour BER 518 4C VCK Sept Iles CAN 490 4D VCK Sept Iles CAN 518 4E NME Charleston US 518 4G NMG New Orleans USA 518 4H JPC Curacao ATN 518 4H XMI329 Prescott ON CAN 518 4I XXX Upernavik Disko Isl GRL 490 4 VCO Sydney CAN 518 4M XXX Simiutag Cape Farewell GRL 518 4N NMN Portsmouth USA 518 40 VON St Johns CAN 518 4P XLJ895 Thunder Bay ON CAN 518 40 VCO Sydney CAN 490 45 VFF Iqaluit NU CAN 518 4T VFF Igaluit CAN 490 4T VFN 3 Montreal QC CAN 115 chars used MAX 300 518 4U VAR 9 Fundy NB CAN 490 V VAR 3 Yarmouth CAN 518 4W OXI Nuuk GRL 4 518 4X VOK Labrador JUL OCT CAN 518 4X VOK Labrador CAN 490 5A CWM27 La Paloma URG w CONFIRM KEYWORD LIST 518 SF CWM27 La Paloma URG m have fewer UNIDs in your logs The process is quite straightforward In the left window click on the station that you wish to edit The keywords if available for that station will appear in the right column To add a keyword enter it in the New Keyword input field and press ADD To delete a keyword double click it and confirm To change a keyword delete it and add the correct version again You cannot add the same keyword more than once When finished press Confirm Keyword list GIDs and UIDs are separately listed Note that the Confirm Keyword List function only saves the list that is currently visible not both lists III There is room for
12. 7 03 00 73 gt NCC HAMBURG 2013 03 29 07 03 03 73 gt 250930 UTC MAR 13 2013 03 29 07 03 07 73 gt NAV WARN NO 160 2013 03 29 07 03 12 73 gt TSS GERMAN BIGHT WESTERN APPROACH 2013 03 29 07 03 22 73 gt GW EMS LIGHI VESSEL 54 10N 006 21E RACON INOPERATIVE 2013 03 29 07 03 23 73 NNNN n 20130325 0711 518 01T OST Ostend BEL 109 2013 03 29 07 11 26 91 ZCZC TAB6 This is a tool to assemble and export reception reports to plain text files Two formats are available NavtexDX and DX A DX Antwerp is my local DX club here in Antwerp Belgium and uses a different report format NavtexDX is the default format To add records to the report go to the Messages tab There Shift LeftClick in the UTCRECEIVED column of the records you wish to add When finished go back to the Report tab The upper window will contain a summary line for each previously selected record The lower window will contain the summary line together with raw message text Both windows are freely editable you can add change delete text as you like Click Save to store the report Yand will propose a filename in unique timestamp format e g NDX20130330 204022 TXT but you re free to change this Reports will be saved in the YAND LOG directory Note that you cannot change this directory Prepending the filename with a drive letter or a directory path will not work Garbled text with wrong letters figures shift can be corrected by copying select with the mous
13. NR 439 09 01 27 54 01 27 38 STRAIT OF CANAKKALE 01 27 44 KEPEZ LIGHT BUOY S WITH K CODE RACON 01 27 51 gt 40 05 40 N 026 21 40 E INOPERATIVE 01 27 55 gt WIDE BERTH ADVISED OMe sere eo 0Ol 27 56 NNNN Yand will first attempt to find a globally unique identifier With the above message this is easy IZMIR TURK RADIO But even if this string would not have been present in the message Yand will attempt to identify it by using the combination of the T identifier and one or more geographical hints For the above message this would be Identifier 1 TURK or CANAKKALE gt this must be S03l Izmir Here another I message is shown but now originating from SAS Varberg SWE LIT 19 ZCLC ADOS 17 24 21 241230 UTC NOV 17 24 26 BALTIC SEA GALE WARNING 509 LP 2 0 gt 17 24 29 gt NEAR GALE WARNING IA E 9 gt 17 24 37 gt SKAGERRAK ON WEDNESDAY S 14 17 M S 17 24 43 gt KATTEGAT WEDNESDAY AFTERNOON S 15 M S 17 24 55 gt SOUTHERN BALTIC W IN SOME AREAS UP TO 14 M S OVERNIGHT DECR 17 25 07 gt SOUTHEASTERN BALTIC W IN SOUTHERN PARTS UP TO 14 M S OVERNIGHT DECR L 7225205 gt NNNN Varberg does not send a unique identifier so here Yand must identify the station by finding matching geographical identifiers for all l stations in its database Y BALTIC and or SKAGERRAK and or KATTEGAT 011 SAS Varberg No other Navtex station in the world with identifier would eve
14. and cons Severe weather conditions at sea will cause more gale storm warnings to be broadcasted Some stations will produce one message for each subject others will combine many subjects into one big message The size of the sea area a Navtex station must service can vary widely Is receiving 5 messages from a distant station better DX than receiving only one The least one can say is that the DX opening must have been longer to receive 5 messages But the true cause for receiving those 5 messages might have been that a local flame thrower has not used its timeslot And so on YaND 6X manual EN odt Page 13 of 24 DX Atlas interface v 1DAY C 1WEEK C 1MONTH Select Center Date At the right of the window is a interface to DX Atlas This allows you to produce a chart of the stations received on a given day If you have DX Atlas installed on your system click on the Connect button DX Atlas will come up in front and in the way of Yand Alt Tab to bring Yand to the foreground again Select a date and a time span and click on the left arrow button DX Atlas will come to the foreground and show the stations received on that day The lower panel as shown here will only become visible after a succesfull connect Each time you select a date DX Atlas will be updated Clicking the right brush button will clear DX Atlas screen If you have a non registered copy of DX atlas the above won t work because DX atlas will stop on its nagg
15. caling is automatic i e signal amplitudes will always fill the screen to 80 regardless of their actual amplitude This works fine but if nothing is connected to the selected input the always present input noise will be shown resulting in possibly funny signal artefacts The lower window shows the SNR history of the last 60 minutes Strange propagation variations can sometimes be observed YaND 6X_manual_EN odt Page 10 of 24 Calibration To decode synchronous signals buried AUTOCAL deep in the noise a Navtex decoder must a recover the bit clock as accurately as possible and b sample each bit in the middle of the bit as accurately as possible As the Windows OS as seen from an application has no adequate support for measuring time intervals with any accuracy we CORRECTION FACTOR are dealing with bit times of 10 rr i milliseconds for Navtex the sound i card sampling rate is used as a MANUAL ADJUST reference by Yand and most other decoders The sound card is running by itself and uses an internal accurate clock which is not affected by system activity or CPU load This approach assumes that the sound card s sample rate is absolutely correct This is the case within a few tens of a percent for most cards in desktop PC s which is accurate enough Laptops seem to be an exemption to the rule have seen errors of more then 396 on certain types from well known brands Although errors of this magnitude ar
16. cbNav Items Add IntToStr DEFINED NAVAREAS 1 L CA VERSION cbNavStat Items Add IntToStr DEFINED NAVAREAS i1 H E Uses end E A3nalogG auge cbNavStat ItemIndex 0 force update 21 ABSMain cbNavStatChange nil m ABSTypes cbNav ItemIndex 0 A Actives zi AppE vnts DIPStart DateTime now A Buttons DTPEnd DateTime now 21 CfoFiles DtpAtlas DateTime Now zm Chart DIPCleanup DateTime Now 365 YaND was developed with Borland s Delphi 7 Enterprise Edition using the programming language Object Oriented Pascal The task was started early 2007 not coincidentally around the time when I retired 0 mostly worked on it during evening hours and at first had to do a lot of study on Digital Signal Processing one of the rare software areas had never done any work on in my professional career at Agfa Belgium Beginning 2008 had the raw decoder functions working without any bells amp whistles Then came the further refining and adding the tools I felt every Navtex DX er should have at its fingertips from within the decoder Number of source code lines so far 28000 and counting Hope you enjoy YaND 73s Dirk edited with LibreOffice Writer v3 6 1 2 YaND 6X manual EN odt Page 24 of 24
17. d is out of sync Led DATA data are being received CPU load gauge Indicates the CPU load caused by YaND not the total CPU load SNR gauge Indicates an estimated signal to noise ratio Values will only be meaningful and coherent for receivers bandwidths of 400 1000Hz Standard voice channel SSB settings 2 2 Khz will typically give too low values Hammer button forces a resync of the decoder YaND 6X_manual_EN odt Page 6 of 24 The various tab pages A description of Yand s many tab pages follows Spectrum Under the spectrum window the current message being received is shown L3 R3 PRO PRO KO BJ RJ Ce T xu Ca M L3 P Li x SIRAIT T55 SANDETTIE DEEP WATER ROUTE MDW LIGHTBUOY 1N 001 39 3E UNLIT r S Fa Es in cm N Ca e a Incoming decoded characters are assembled into lines internally but are also continuously sent to the ticker line on the top panel When a line is complete it is added to the message window Note that some stations send their text totally unformatted no or almost no carriage return or linefeed characters Yand will force the text to be added to the message window if more then 200 characters were accumulated When a NNNN line is received the message is entered into the message database and the message window is cleared Some stations do not send a CR LF sequence after NNNN The message will remain in the message windows until the ZCZC sequence of the next message
18. des West of Greenwich must be negative numbers Do not log message fragments etc enter an appropriate value if you want to get rid of short mostly unusable message fragments messing up the message database 35 50 characters is a good starting value Selective Logging In this table you can indicate which stations you wish to include or exclude from logging Most users will want to exclude the local flame throwers from the logs YaND 6X_manual_EN odt Page 16 of 24 Personal amp Equipment Info You can optionally enter your personal and equipment info in here This info will be included in all reception reports if you have checked the applicable option in the report tab Press Confirm amp Save to store your options options will only take effect after you press this button Database Maintenance Log Database Maintenance If the database size YAND_DB ABS becomes unwieldy large you can clean it up with the described options Most DX ers will only keep distant and or exotic Stations in their logs RECORDS WHERE OLDER than selected date DISTANCE lt than set distance Note that the database engine when it deletes records will not physically delete the record space but will instead re use this space for new records In other words the file size will never shrink OLDER than selected date AND distance lt set distance Delete ALL UNIDs all options above will retain UNIDs To force
19. e press Ctrl c and pasting Ctrl v the erronneous text into the Shift reverser tool text box and pressing REV 54 H J4 S89 will automagically become ASTRAKHAN RADIO YaND 6X manual EN odt Page 12 of 24 Reception Stats See below for an example of the plot for Miami on 518 KHz for the period January 1 2008 April 2013 as received here at my QTH in Belgium and notice the striking progression of the solar cycle into bad territory 3 e Li lU P 0 Th I I I I I urs I I I I 4 I I I I I H l I I l mmm TI TI T I Eu K ELI US UE EE I Oct 01 111 June 201 0 4 TERRENT EIL Simply choose the desired time period frequency and navarea choosing the navarea will update the available stations in that area choose a station and press the PLOT button You can change each of the selectors at will but you must press the PLOT button after each change to update the plot The plot can be shown averaged by day or by month and you have the option to plot average signal quality average message count or both Note that selecting by day for a long time period will produce rather spiky plots and that selecting by month for short time periods will produce only a few wide bars It is debatable whether the total number of messages received in a day or a month from a given station is a reliable indicator for DX conditions There are many pro s
20. e disastrous for bit timing it was also observed that this error was stable over time so a Calibrate once and Forget functionality was needed The Calibration facility provided by Yand is simple to use Wait until a signal from a local station is received don t do this with noisy DX signals Check that Yand s tuning is locked onto the signal and data are being received possibly with errors if you have a bad sound card Goto the Calibration tab and enable the calibration Ifthe needle is not stable and in the green centre area use the slider to bring it there press Save Factor Needle is left of center gt move slider to the right and vice versa If the needle is wildly swinging this indicates you are way off Slowly try again Alternatively try the Autocal function Be patient it may take 30 45 seconds for the needle to become stable Press Save Factor Only press Save Factor when you are confident YaND will restore the factor in use prior to the calibration attempt if Save Factor was NOT pressed YaND 6X manual EN odt Page 11 of 24 Reception Report t Format MavtexDX C DX A REV FIGURES LETTERS SHIFT REVERSER 20130329 0702 518 015 DDH47 Pinneberg DEU 460 20130325 0711 518 01T OST Ostend BEL 109 20130329 1644 518 01E GNI Niton ENG 407 20130329 1700 518 01G GCC Cullercoats ENG 587 E 20130329 0702 518 015 DDH47 Pinneberg DEU 460 2013 03 29 07 02 58 73 ZCZC 5A33 2013 03 29 0
21. ed i e a connector must be plugged in Yand will re enumerate all available inputs each time the Audio Input button is pressed On Vista W7 W8 any new connections made while the selection window is open will not be shown until you close and re open the window Audio Spectrum Current message display Yand calculates the signal spectrum ca 10 times sec via a Fourier transform and displays this in the upper window By default the spectrum will be heavily filtered over time in order to accurately track the signal peaks Keep this in mind when tuning the receiver the peaks will only slowly move across the spectrum The raw unfiltered and noisy spectrum can be displayed by clicking the FIL RAW toggle button for its autotracking function Yand will internally always use the filtered version of the spectrum to assure a stable reading The vertical axis of the spectrum can be shown on a linear or logarithmic scale by clicking the LIN LOG toggle button YaND 6X_manual_EN odt Page 5 of 24 Settings Panel 518 KHz will be set by default as this is the busiest Navtex Frequency This frequency setting will only affect the Navtex schedule see tab Navtex Schedule and the Station Identification feature of YaND Note that Yand cannot know the frequency your receiver is tuned to Inverted LSB Signal Polarity select Normal when your receiver is set to USB or Inverted otherwise If this setting is wrong Yand will not work at
22. ess all day YaND 6X manual EN odt Page 15 of 24 Options amp Preferences SNR on log line 51 122939 Your latitude 90 0 90 in DECIMAL degrees la 467524 Your longitude 180 West 0 180 East in DECIMAL degrees SELECTIVE LOGGING UNCHECK to exclude a station from logging 490 1 EJM Malin Head IRL 518 17 SAA Gislovshammar SWE i 490 1B OST Ostend BEL i 490 1K TFA Grindavik ISL 490 1C GPK Portpatrick UK 518 1K GNI Niton ENG 518 1D OXJ Torshavn FRO 490 1L DDH47 Pinneberg GER 518 1E GNI Niton ENG 518 1L LGQ Rogaland NOR 490 1E TFA Saudanes ISL 518 1M Lxx Jeloya NOR 518 1G GCC Cullercoats ENG 518 1N LFO Orlandet NOR 518 1H SAH Bjuroklubb S WE 518 10 GPK Portpatrick SCT 490 11 GNI Niton UK 518 1P PBK Den Helder HOL 518 11 SAS Varberg SWE 518 10 EJM Malin Head IRL 4 HW CHECK ALL UNCHECK ALL Iv Do not log message fragments containing less than 30 characters Personal amp Equipment Info Report from Dirk Claessens M OTH South of Antwerp Belgium Locators 51 07 23N 04 28 03E JO21Jje Receiver Perseus SDR Lowe HF225 MW paOrdt Mini Whip 8 5m NU YaND 6 3 CONFIRM amp SAVE ALL OPTIONS Confirmation popup on DB record deletion By default Yand will ask for a confirmation each time when you delete a record If you don t like this uncheck this option Latitude Longitude enter your coordinates here in decimal degrees Note that southern latitudes and longitu
23. essages are received To facilitate finding a given message or group of messages extensive filtering options and navigation buttons are available Filtering can be done on frequency id letter navarea in any combination Note that the ID letter field must contain a A Z character OR the wildcard it should not be blank or no records will be shown Raw Text Search This is implemented as a filter Example if you enter RESCUE in the input box and click on the blue button atthe right only messages containing this string will be shown You cannot combine the text search with the other filter options to the left and vice versa When filtering is active the yellow led will blink This is to remind the user that not all records are shown when a filter on ID letter A is active and a message from a F station is received this message will not be shown although it is in the database but it is filtered out If Yand failed to identify the station or did so but incorrectly which should be rare the ID letter and the navarea can be forced in the following way Double click on the B1 field of the record or click once and press Enter Enter the B1 character in CAPITALS Leave the field with the up or down arrow key Repeat the above for the NAVAREA field Yand should now have filled in the station name and country code If the stations remains UNID you have specified an unassigned ID letter for the
24. ing screen and the connect will fail In that case you must start up DX atlas manually and before you click on the Connect button Even with a registered version of DX atlas the interface to it is still a bit flaky f you close DX atlas manually a subsequent reconnect from within Yand will fail You will need to stop restart Yand Ifyou close Yand DX atlas will also quit YaND 6X manual EN odt Page 14 of 24 Ephemeris On MW long haul DX is only possible when both receiver and transmitter are in darkness or one of them is close to sunrise sunset time and the other is still in darkness This is visualized graphically on Yand s Sun Ephemeris tab to reveal the optimal time s of potential reception of a given Navtex station on a given date SUN EPHEMERIS Ephemeris comparison for HZG Dammam 4709 Km on 2010 02 16 LOCAL DAYTIME DX STATION S DAYTIME DX STATION S TIMESLOTS Operation is very straightforward simply double click on the station of interest Given favourable propagation conditions reception of the selected station is possible in the non coloured part of the graphic or close to the sunrise sunset points of receiver transmitter Many stations transmit on 518 and 490 KHz so make sure to select the right frequency ephemeris data will be the same but not the timeslots Ephemeris comparison for LGW Vardo 2541 Km on 2012 12 28 NO SUN ON THIS DATE In winter stations located far North may be in darkn
25. nal In a nutshell a strong signal is an almost perfect sinusoid A weak noisy signal is the sum of the actual Navtex signal and many random other frequencies For a pure sine wave the ratio of its peak to peak value to its standard deviation is known 2V2 2 83 For a noisy random signal this ratio is 7 The rest is scaling but this scaling is dependant on the receivers s IF bandwidth and is optimized for bandwidths in the range of 400 800Hz Wider bandwidths will yield values that are typically too low Future versions of Yand may have an option to indicate the actual receiver bandwidth YaND 6X_manual_EN odt Page 9 of 24 Scope The upper window is a simple oscilloscope that can show various signals internal to Yand Checking unchecking the radio buttons at the right of the window starts stops the oscilloscope RAW the raw audio source FIR the output of the mark space FIR filters in Yand s software modem ENV the output of the envelope filter after the FIR filters BIT the recovered bit stream after the bit slicer PLL Phase Locked Loop The time base of the oscilloscope can be changed by selecting the X1 X2 X4 radio buttons Note that the oscilloscope s update frequency is 10 Hz and as such can cause quite some CPU load on old systems The oscilloscope can be put in one shot mode by checking the box at the lower bottom Repeatedly clicking on the desired signal source will refresh the trace The oscilloscope Y axis s
26. physical deletion of the selected records check the Compact option before clicking the Execute button Z ONLY import station data and keep your own keywords IMPORT Station keyword database Import Export The keyword database is a constant work in progress and it will take many months before this will be completed for all navareas Updating the keyword database works via a intermediate file YAND STATIONS TXT in the Yand directory Updates will be distributed on NAVTEXDX yahoo com Putting this file in the Yand directory and clicking the Import button will update the internal database Clicking Export will do the reverse and store the file YaND 6X_manual_EN odt Page 17 of 24 System Log This shows all kinds of boring information for debugging and problem solving purposes It may grow to 10 000 lines if you keep Yand running for a loong time and will then be cleared and started again Station Identification how does it work The general idea is rather simple With few exceptions every Navtex message will contain some geographical hints revealing the general area where the message originated from Also many Navtex stations will transmit a globally unique station identifier This can be the full name of the station its ITU call or both A few examples will further clarify the identification process 0J gt 2 7 252 gt AUCAC TASZ 01 27 28 gt 261349 UTC AUG 09 01 27 30 IZMIR TURK RADIO 01 27 34 gt NAVTEX NW
27. r mention SKAGERRAK YaND 6X_manual_EN odt Page 18 of 24 Obviously for this to work correctly the identifier letter must be received correctly and in combination with a correct ZCZC header Note that the globally unique identifiers can succesfully identify a station even when only bits and pieces were received 22 AT 22s 22s 22 LES P soi 24 gt ede de NYY Ny Te Jero brrrrrrrrr rrrrrr gt r gt OR SYDNEY VCO OW E C N I NR CA LTOH UNATAI ABL N IL FUR HER REQUEST NN SYDNEY VCO gt VCO Sydney CAN 16 16 163 16 LOS 16 16 1153 zn CODO UA E 2 iud Los z A Los 055 09 14 19 235 245 26 DOL ISON 3321993 O LION 35 909 E 332015N 341215ER33 1619N 41633 3 3500 N sew 3815013 VISNBELSSAREes DEOURSTED NOT Ts APPROACH W TH N 8 NM OC IHE MENT U LONES ES BLJM ISR AUTH we NNNN ISR AUTH Israeli Authority is only used by S03P 4XO Haifa ISR Some messages are impossible for Yand to identify because no hints at all are present 191 18 183 15 153 Les Te 18 15 18 153 00 00 00 00 soor 00 00 Ae i 54 gt Ao 02 02 02 U2 Qas 41 gt 43 gt 03 gt 09 gt 12 gt 18 gt 18 gt ZCZC MA16 291011 UTC DEC WA 1512 WZ MESSAGES IN FORCE AT 251000 UTC DEC 19541 9G25 16 1364 GA35 4 1505 EA15 MA15 5 6 1508 OA37 10 11 1510 GA14 1 1511
28. specified navarea Navtex Schedule Navarea Preferences check uncheck to show hide area s of interest A i 1 2 3 4 5 6 7 8 9 111 13 15 16 if On Air Now v e e fe T 1 7 F APPLY After a fresh installation this panel will show the worldwide Navtex schedule for all navarea s This is a rather massive table with ugly horizontal scroll bars You can check uncheck the navareas of interest to reduce the amount of information Press the Apply button and Yand will remember your preferences Above shown are the navareas receivable in Europe YaND 6X_manual_EN odt Page 8 of 24 Clicking the On Air Now button will take you to the current timeslot Note that this is always in UTC regardless of your system s timezone setting or Yand s time settings When the 518 490 frequency setting is changed from Yand s main screen the schedule will be automatically updated YaND s station database was extracted from the most authoritative source on lt http www ndblist info datamodes worldNAVTEXdatabase pdf gt maintained by Alan Gale G4TMV Thanks to Alan Signal Calibration Two subtabs are present here Scope and SNR History Calibration SNR History The SNR values over the last hour are shown here A note on SNRs Yand is not showing the true SNR value Calculating the SNR without some knowledge of the receiver characteristics is a difficult exercise Instead Yand calculates the general usability of the sig
29. whatever directory you prefer but NOT under C Program Files x86 The installer will give you the option to change the install path Change the path to C YAND C MYAPPS YAND or whatever you prefer YaND 6X_manual_EN odt Page 3 of 24 First use and settings Switch on your receiver wait until a Navtex signal is being received select USB and tune to 516 5 KHz The position of the spectrum peaks is not important just avoid to go below 400 500 Hz or so Optimal settings for Perseus users Set mode to RTTY BW to 0 8 Khz and adjust IF bandwidth to 400Hz in the secondary spectrum window Set AGC to Fast Audio Input Selection Press to select the audio input Line Microphone inputs will be mostly used VAC Virtual Audio Connector inputs will also be selectable Please note that high input levels will cause clipping of the audio signal Check the Input Level Gauge Clipping is a Bad Thing and will severely degrade YaND s decoding capabilities SELECTED SOUND CARD ZINPUT Line 1 Virtual Audio Cable CLICK TO SELECT Line 1 Virtual Audio Cable Line In Realtek High Definitio Q APPLY amp SAVE J CANCEL YaND 6X_manual_EN odt Page 4 of 24 WIN2K WINXP VISTA WIN7 WIN8_audio issues On Win2K and XP YaND will enumerate all physically present input sources from all installed sound cards On Vista Win7 and Win8 Yand will only enumerate input sources which are physically present AND connect
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